Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a warm 84.9°F (29.4°C) from a hot 92.3°F (33.5°C). During September, Red Oak observes a consistent average nighttime temperature of 63.7°F (17.6°C).Heat index
September's average heat index is estimated at a hot 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Red Oak, the average relative humidity in September is 70%.Rainfall
In Red Oak, Oklahoma, in September, it is raining for 13 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 143.3 rainfall days, and 32.8" (833mm) of precipitation is accumulated.Snowfall
In Red Oak, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:53 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:05 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 in September translates into these instructions:
Prioritize safety - Recommendations to avert sunburn are shared. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow in Red Oak?
How many hours of daylight does Red Oak have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Red Oak have in September?
How high is the UV index in September?
Average temperature in September
Red Oak, OK
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Red Oak, OK
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Red Oak, OK
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Red Oak, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Red Oak, OK
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in September
Red Oak, OK
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (15.3 days).
The months with the least rainy days are January and December (8.3 days).
Average snowfall in September
Red Oak, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Red Oak, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Red Oak, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Red Oak, OK
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in September
Red Oak, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Red Oak, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Red Oak, OK
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Red Oak, Oklahoma, USA
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